1. When making yam powder, you need to choose fresh, smooth and high-quality yam without disease spots. Remove the sediment from its surface first, then rinse it with clear water, and then peel off the skin of yam.

2. Cut peeled yam into thin slices about 3mm thick. After cutting, you need to put it directly into 0.5% sodium bisulfite solution, take it out two hours later, rinse it with clean water after taking it out, and then cook it in boiling water for 6 to 8 minutes.

When cooking yam slices, be careful not to cook them too badly. After cooking, remove the water, put it into a dryer to dry, and finally directly grind the dried yam slices into powder with a pulverizer. At this time, the homemade yam powder is ready.

Yam powder is a well-known tonic. It contains protein, sugar, vitamins, fat, choline, amylase and other components, as well as iodine, calcium, iron, phosphorus and other indispensable inorganic salts and trace elements. It contains enough fiber, which will make you feel full after eating, thus controlling your desire to eat. Secondly, yam itself is a kind of food with high nutrition and low calorie, so you can eat more without worrying about getting fat.

Reference yam powder-Baidu encyclopedia